Re: NSSA Doubt

I think, When an router is NSSA asbr and ABR, the P bit is not set, as the
LSA 5 and 7 are advertised into respective areas by the router itself. And
as P bit is not set, the T7 lsa are not subject to T7/T5 translation,
therefore R5 doesn't do any translation.

You can further check the status of P bit by using - "sh ip ospf database
nssa-external | i translation"

On Sun, Mar 3, 2013 at 9:35 AM, Saravanan Ponnaiah <
saravanan.ponnaiah8_at_gmail.com> wrote:

> Dear Expert,
>
> I have a topolgy
>
>
> EIGRP NSSA AREA 1 AREA0
> R1 ---- R2 ---------R3--------------------R5 ------- R6
> |
> |
> | AREA 0
> |
> R4
>
> R1 - LOOPBACK - 1.1.1.1
> R2 - LOOPBACK - 2.2.2.2
> R3 - LOOPBACK - 3.3.3.3
> R4 - LOOPBACK - 4.4.4.4
> R5 - LOOPBACK - 5.5.5.5
> R6 - LOOPBACK - 6.6.6.6
>
>
> I am redistributing the route 20.20.20.0/24 from EIGRP to OSPF on R2, the
> R2 is advertising this routes as E2 via R4.
> R5 is learning this routes as N2 but its not advertising to R6 as E2.
>
>
> Other Areas are learning the 20.20.20.0/24 via R2 (Advertising Router)
>
> R5 is the highest loopback, it suppose to advertise , But its not ,why ?
>
> If I shut the link between R2 & R4, other areas are loosing the
> reachability for the prefix 20.20.20.0/24, why ?
>
>
> With Regards
>
> P.Saravanan
>
>
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-- 
-- 
thanks
gaurav
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